#57A2DA
Closest named color: Cornflower Blue (#6495ED). oklch(68.7% 0.112 243), rgb(87, 162, 218).
Aa
Black text reads best on this color (7.58:1).
About this color
#57A2DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.112 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.051 away. Black text reads best on it, at 7.58:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.58:1 |
| White text | 2.76:1 |
Values
| HEX | #57A2DA |
| RGB | rgb(87, 162, 218) |
| HSL | hsl(206, 64%, 60%) |
| OKLCH | oklch(68.7% 0.112 243) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #57A2DA | 2.76:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #57A2DA | 7.58:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #57A2DA text on white | 2.76:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #57A2DA text on black | 7.58:1 | AAA | Lc -48.6 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF7
oklch(93.7% 0.02 243.4)
-
Step 200
200
#C4DDF1
oklch(88.5% 0.038 242.2)
-
Step 300
300
#9AC7EB
oklch(81% 0.07 242.8)
-
Step 400
400 (this color)
#57A2DA
oklch(68.7% 0.112 243)
-
Step 500
500
#1F91D8
oklch(63.1% 0.143 243)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466E
oklch(37.8% 0.091 242.8)
-
Step 950
950
#052941
oklch(27% 0.06 243.1)
#57A2DA with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #89A3DD | 0.054 |
| Deuteranopia (no green cones) | #7796D9 | 0.043 |
| Tritanopia (no blue cones) | #00B0B5 | 0.087 |
| Achromatopsia (no color) | #9B9B9B | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A2DA
#57A2DA
oklch(68.7% 0.112 243)
- #CB8A4C
#CB8A4C
oklch(68.7% 0.112 62.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #57A2DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.051
- Chefchaouen Blue #4895EF ΔE 0.055
- Greyblue #77A1B5 ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.065
- Faded Blue #658CBB ΔE 0.066
- Turquoise Blue #06B1C4 ΔE 0.070
- Bluegrey #85A3B2 ΔE 0.074
- Bluey Grey #89A0B0 ΔE 0.077
Use #57A2DA in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.